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The best multimedia instruction on the web to help you with your homework and study.[國際網路] - www.hippoc*mpus.org - -
[國際網路] - www.n*u.edu - -
NSF's mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country.[國際網路] - www.n*f.gov - -
Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators, [國際網路] - www.ni*.gov - -
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